Mirfasihi, A., Malekafzali, B., Ebrahimi zadeh, H., Sanjari, K. and Mir, M. 2020. Effect of a Combination of Photodynamic Therapy and Chitosan on Streptococcus mutans (An In Vitro Study). Journal of Lasers in Medical Sciences. 11, 4 (Oct. 2020), 405–410.